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Why is benzene stable?
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  • The p orbitals on each carbon atom in benzene overlap

  • There is delocalisation of electrons in the ring (not 3 localised C==C double bonds)
  • This makes benzene more thermodynamically stable than predicted
  • It therefore undergoes substitution reactions rather than addition reactions because addition reaction break the delocalisation in the ring. e.g The nitration of benzene results in a loss of H+ which is replaced by NO2+

Other Notes in this Category

  1. Defintions: Electrophile, nucleophile, radical
  2. Making Alcohols from Alkenes
  3. Manufacture of ammonia
  4. Tests for organic compounds
  5. Why is benzene stable?

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